Impeller welding clamp

Abstract

The impeller welding clamp comprises a machine frame, the machine frame is rotationally connected with a positioning frame through a rotating assembly, the left side and the right side of the positioning frame are respectively provided with at least one positioning block, and the positioning blocks are provided with inserting holes corresponding to auxiliary holes in an impeller. The impellers are detachably connected to the positioning blocks through bolts which penetrate through the process holes and are inserted into the inserting holes, each positioning block is in threaded connection with an adjusting pad capable of abutting against a wheel disc of the impeller connected to the positioning block, the positioning frame is in threaded connection with a plurality of abutting bases, and the abutting bases are in threaded connection with first abutting screws. The position of the impeller on the positioning frame is positioned through the positioning block and the plug pin, the impeller is clasped in the left-right direction through the adjusting pad to achieve primary locking, the first jacking screw is screwed to enable one end of the first jacking screw to abut against the end disc, the end disc is prevented from being disengaged from the positioning block, and therefore secondary locking of the impeller is achieved. The impeller can be firmly and detachably connected to the positioning frame, and an operator operates the rotating assembly to rotate the positioning frame to change the posture of the impeller.

Description

Technical Field

[0001] The utility model relates to the technical field of impeller processing devices, in particular to an impeller welding fixture. Background Art

[0002] In the air supply device, the impeller realizes air supply by rotation. An existing impeller includes a hollow wheel shaft, and end plates can be inserted on both sides of the wheel shaft in the axial direction through interference fit, and a plurality of process holes are provided on the end plates. After the on-site operators insert the end plates on the wheel shaft, the two end plates and the wheel shaft need to be fixed together at the insertion point by welding. The inventor found that when the end plate is circular, the operator can easily adjust the posture of the impeller by rolling the end plate, thereby adjusting the welding position and performing welding. When the end plate has a multi-pointed non-circular outer contour shape such as a star or rectangle, it is time-consuming and laborious to adjust the welding position by manually rolling the end plate. There is an urgent need for an impeller welding fixture that can easily adjust the posture of the impeller. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an impeller welding fixture which can conveniently adjust the impeller posture.

[0004] To solve the above technical problems, the utility model includes a frame, which is rotatably connected to a positioning frame through a rotating assembly, and at least one positioning block is provided on the left and right sides of the positioning frame, and the positioning block has a socket corresponding to the process hole on the impeller, and the impeller is detachably connected to the positioning block by a pin that passes through the process hole and is inserted into the socket, and each positioning block is screwed with an adjustment pad that can support the end plate of the impeller connected to the positioning block, and the positioning frame is screwed with a plurality of tightening seats, and the tightening seats are screwed with a first tightening screw that can support the end plate of the impeller connected to the positioning block.

[0005] After adopting the above structure, the impeller is connected to several positioning blocks through the pins, and the positioning blocks and the pins are used to position the impeller on the positioning frame. At this time, the adjustment pads on the positioning blocks on the left and right sides of the positioning frame are against the end plate, and the adjustment pads hold the impeller in the left and right directions to achieve the initial locking of the impeller. The first tightening screw is screwed so that one end of the first tightening screw is against the end plate to prevent the end plate from being out of contact with the positioning block, thereby achieving the secondary locking of the impeller. Through the positioning, initial locking and secondary locking of the impeller, the impeller can be securely and detachably connected to the positioning frame, and then the operator operates the rotating assembly to rotate the positioning frame, and the posture of the impeller can change with the rotation of the positioning frame, so that the impeller posture can be conveniently adjusted, and the operator can conveniently complete the welding operation of the impeller.

[0006] Furthermore, the rotating assembly includes a wheel seat connected to the frame, the wheel seat is rotatably connected to two rollers, the two rollers are abutted against a rotating shaft body, one end of the rotating shaft body in the axial direction is connected to the positioning frame, and the rotating assembly is provided with two pieces and is symmetrically arranged on the left and right sides of the frame. By setting the rotating assembly, a rotating shaft body abuts against the two rollers, and the operator holds and rotates the rotating shaft body to rotate the rotating shaft body, so that the positioning frame and the rotating shaft body rotate in the same direction to realize the rotation of the positioning frame.

[0007] Furthermore, the frame includes a base and two vertical supports respectively located on the left and right sides of the base, two rotating components are respectively arranged on the two vertical supports, the rotating shaft body is provided with a protrusion with a diameter larger than the outer diameter of the rotating shaft body, and the rotating shaft body is respectively against the bottom of the protrusion behind the two rollers and is located below the top of the vertical supports. By providing the protrusion, the position of the rotating shaft body on the frame is limited to prevent the operator from pushing the rotating shaft body along the axial direction of the rotating shaft body when rotating the rotating shaft body, causing the position of the positioning frame to change and the rotating shaft body to fall off from the roller.

[0008] Furthermore, the positioning frame includes a first support plate located on the left side of the frame and a second support plate and a third support plate located on the right side of the frame, the positioning block is arranged on the first support plate and the second support plate, the first support plate is connected to the rotating shaft body located on the left side of the frame, the second support plate is connected to the rotating shaft body located on the right side of the frame, the first support plate, the second support plate and the third support plate are detachably connected by at least two connecting shafts, and the distance between the second support plate and the first support plate can be adjusted. By setting the positioning frame, the adjustable setting of the distance between the second support plate and the first support plate can reduce interference with the impeller when placing the impeller on the positioning frame and the positioning block, and ensure that the connection of the impeller on the positioning frame and the positioning block is smooth.

[0009] Further, the connecting shaft includes a main shaft body, a first insertion portion for being plugged into the first support disk is provided on the left side of the main shaft body, a first threaded portion is provided on the left side of the first insertion portion, the outer diameter of the first threaded portion is smaller than the outer diameter of the first insertion portion, the outer diameter of the first insertion portion is smaller than the outer diameter of the main shaft body, the first threaded portion is threaded with a first nut that can abut against the left end face of the first support disk inserted into the first insertion portion, and the length of the first insertion portion is adapted to the thickness of the first support disk, a sliding portion is provided on the right side of the main shaft body, the outer diameter of the sliding portion is smaller than the outer diameter of the main shaft body, the second support disk is provided with a guide sleeve that is slidably connected to the sliding portion, the guide sleeve is threaded with a second tightening screw that has one end that can abut against the sliding portion, a second insertion portion for being plugged into the third support disk is provided on the right side of the sliding portion, the outer diameter of the second insertion portion is smaller than the outer diameter of the sliding portion, the length of the second insertion portion is adapted to the thickness of the third support disk, a second threaded portion is provided on the right side of the second insertion portion, the outer diameter of the second threaded portion is smaller than the outer diameter of the second insertion portion, and the second threaded portion is threaded with a second nut that can abut against the right end face of the third support disk inserted into the second insertion portion. By setting a guide sleeve and a second tightening screw, the second support plate is slidably connected to the sliding part of the connecting shaft through the guide sleeve, so that the spacing between the second support plate and the first support plate can be adjusted. When the impeller is placed on the positioning block, the spacing between the second support plate and the first support plate is first enlarged, so that the end plate located on the left side of the wheel axle is connected to the positioning block located on the left side of the positioning frame through the latch, and then the spacing between the second support plate and the first support plate is reduced, so that the end plate located on the right side of the wheel axle is connected to the positioning block located on the right side of the positioning frame through the latch, and then the second tightening screw is screwed to make one end of the second tightening screw abut against the sliding part to achieve position locking of the guide sleeve and the second support plate on the sliding part, and the left end surface of the third support plate and the right end surface of the main shaft body limit the sliding position of the guide sleeve.

[0010] In summary, the utility model has the advantages of convenient use, reasonable structure, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 yes Figure 1 Schematic diagram of the structure viewed along line AA;

[0013] Figure 3 yes Figure 1 A partial enlarged view of area B in the middle;

[0014] Figure 4 It is a structural schematic diagram of a rotating shaft body;

[0015] Figure 5 is a schematic structural diagram of a first support plate;

[0016] Figure 6is a schematic structural diagram of a second support plate;

[0017] Figure 7 It is a structural schematic diagram of the connecting shaft;

[0018] Figure 8 It is a structural diagram of the positioning block;

[0019] Fig. 9 yes Figure 8 Schematic diagram of the structure viewed along line CC;

[0020] Fig.10 It is a schematic diagram of the structure of the adjustment pad;

[0021] Fig.11 It is a structural schematic diagram of the jacking seat;

[0022] Fig.12 It is a structural schematic diagram of the guide sleeve;

[0023] Fig.13 It is a schematic diagram of the state of the impeller in the utility model;

[0024] Fig.14 It is a structural diagram of the end plate;

[0025] Fig.15 yes Fig.14 Schematic diagram of the structure projected along the D direction;

[0026] Fig.16 yes Fig.14 Schematic diagram of the structure projected along the E direction;

[0027] Fig.17 It is a schematic diagram of the structure of the impeller;

[0028] In the figure: 1. frame; 11. base; 12. support; 2. rotating assembly; 21. wheel seat; 22. roller; 23. rotating shaft; 231. protrusion; 3. positioning frame; 31. first support plate; 32. second support plate; 33. third support plate; 34. connecting shaft; 341. main shaft; 342. first plug-in part; 343. first threaded part; 344. sliding part; 345. second plug-in part; 346. second threaded part; 4. positioning block; 41. socket; 42. latch; 43. adjustment pad; 5. tightening seat; 51. first tightening screw; 6. guide sleeve; 61. second tightening screw; 7. process hole. DETAILED DESCRIPTION

[0029] Now, the utility model is further described in detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model. For ease of understanding, Figure 1The left side is the left side of the utility model. Figure 1 The right side is the right side of the utility model. Figures 14 to 17 The impeller includes a hollow wheel shaft, and the left and right sides of the wheel shaft in the axial direction can be plugged with end plates through interference fit, and a plurality of process holes 7 are provided on the end plates.

[0030] Reference Figure 1 , Figure 4 and Fig.13 The utility model includes a frame 1, and the frame 1 is rotatably connected to a positioning frame 3 through a rotating assembly 2. The rotating assembly 2 includes a wheel seat 21 connected to the frame 1, and the wheel seat 21 is rotatably connected to two rollers 22, and the two rollers 22 are abutted against a rotating shaft body 23, and one end of the rotating shaft body 23 in the axial direction is connected to the positioning frame 3. The rotating assembly 2 has two pieces and is symmetrically arranged on the left and right sides of the frame 1. The frame 1 includes a base 11 and two vertical supports 12 respectively located on the left and right sides of the base 11, and the two rotating assemblies 2 are respectively arranged on the two vertical supports 12, wherein the wheel seat 21 is arranged on the upper part of the vertical support 12, and the rotating shaft body 23 is provided with a protrusion 231 with a diameter larger than the outer diameter of the rotating shaft body 23, and the rotating shaft body 23 abuts against the two rollers 22 respectively, and the bottom of the protrusion 231 is located below the top of the vertical support 12, and the protrusion 231 can be integrally formed with the rotating shaft body 23.

[0031] Reference Figures 1 to 3 , Figures 5 to 13, at least one positioning block 4 is provided on the left and right sides of the positioning frame 3, and the positioning block 4 has a socket 41 corresponding to the process hole 7 on the impeller, and the impeller is detachably connected to the positioning block 4 by a pin 42 passing through the process hole 7 and plugged into the socket 41, and each positioning block 4 is screwed with an adjustment pad 43 capable of supporting the wheel disc of the impeller connected to the positioning block 4. The positioning frame 3 includes a first support plate 31 located on the left side of the frame 1 and a second support plate 32 and a third support plate 33 located on the right side of the frame 1, and the positioning block 4 is provided on the first support plate 31 and the second support plate 32. In this embodiment, the first support plate 31 is provided with four positioning blocks 4, and the second support plate 32 is provided with four positioning blocks 4. The first support plate 31 is connected to the rotating shaft body 23 located on the left side of the frame 1, and the second support plate 32 is connected to the rotating shaft body 23 located on the right side of the frame 1. The first support plate 31, the second support plate 32 and the third support plate 33 are detachably connected by at least two connecting shafts 34. The spacing between the second support plate 32 and the first support plate 31 can be adjusted. Specifically, the connecting shaft 34 includes a main shaft body 341, a first insertion portion 342 for being inserted into the first support plate 31 is provided on the left side of the main shaft body 341, a first threaded portion 343 is provided on the left side of the first insertion portion 342, the outer diameter of the first threaded portion 343 is smaller than the outer diameter of the first insertion portion 342, the outer diameter of the first insertion portion 342 is smaller than the outer diameter of the main shaft body 341, the first threaded portion 343 is threaded with a first nut that can abut against the left end face of the first support plate 31 inserted into the first insertion portion 342, and the length of the first insertion portion 342 is adapted to the thickness of the first support plate 31; a sliding portion 344 is provided on the right side of the main shaft body 341, and the sliding portion 344 The outer diameter is smaller than the outer diameter of the main shaft body 341, the second support plate 32 is provided with a guide sleeve 6 that is slidably connected to the sliding part 344, the guide sleeve 6 is threadedly connected with a second tightening screw 61 that can abut on the sliding part 344, the right side of the sliding part 344 is provided with a second plug-in part 345 for plugging into the third support plate 33, the outer diameter of the second plug-in part 345 is smaller than the outer diameter of the sliding part 344, the length of the second plug-in part 345 is adapted to the thickness of the third support plate 33, the right side of the second plug-in part 345 is provided with a second threaded part 346, the outer diameter of the second threaded part 346 is smaller than the outer diameter of the second plug-in part 345, and the second threaded part 346 is threadedly connected with a second nut that can abut on the right end face of the third support plate 33 inserted in the second plug-in part 345. The positioning frame 3 is threadedly connected with a plurality of tightening seats 5, and the tightening seats 5 are threadedly connected with a first tightening screw 51 that can abut on the end plate of the impeller connected to the positioning block 4.

[0032] When the utility model is used, the impeller is connected to a plurality of positioning blocks 4 through a latch 42, and the positioning blocks 4 and the latch 42 position the position of the impeller on the positioning frame 3. At this time, the adjustment pads 43 on the positioning blocks 4 on the left and right sides of the positioning frame 3 are against the end plate, and the adjustment pads 43 hold the impeller in the left and right directions to achieve the initial locking of the impeller. The first tightening screw 51 is screwed so that one end of the first tightening screw 51 is against the end plate to prevent the end plate from being out of contact with the positioning block 4, thereby achieving the secondary locking of the impeller. Through the positioning, initial locking and secondary locking of the impeller, the impeller can be securely and detachably connected to the positioning frame 3, and then the operator operates the rotating assembly 2 to rotate the positioning frame 3, and the posture of the impeller can change with the rotation of the positioning frame 3, so that the posture of the impeller can be conveniently adjusted, and the operator can conveniently complete the welding operation of the impeller.

[0033] The utility model provides an impeller welding fixture, which is provided with a rotating assembly, a rotating shaft body abuts against two rollers, and an operator holds and rotates the rotating shaft body to rotate the rotating shaft body, so that the positioning frame and the rotating shaft body rotate in the same direction to realize the rotation of the positioning frame. By providing a protrusion, the position of the rotating shaft body on the frame is limited, so as to prevent the operator from pushing the rotating shaft body along the axial direction of the rotating shaft body when rotating the rotating shaft body, thereby causing the position of the positioning frame to change and the rotating shaft body to fall off the roller. By providing the positioning frame, the adjustable setting of the distance from the second support plate to the first support plate can reduce the interference with the impeller when placing the impeller on the positioning frame and the positioning block, thereby ensuring the smooth connection of the impeller on the positioning frame and the positioning block. By setting a guide sleeve and a second tightening screw, the second support plate is slidably connected to the sliding part of the connecting shaft through the guide sleeve, so that the spacing between the second support plate and the first support plate can be adjusted. When the impeller is placed on the positioning block, the spacing between the second support plate and the first support plate is first enlarged, so that the end plate located on the left side of the wheel axle is connected to the positioning block located on the left side of the positioning frame through the latch, and then the spacing between the second support plate and the first support plate is reduced, so that the end plate located on the right side of the wheel axle is connected to the positioning block located on the right side of the positioning frame through the latch, and then the second tightening screw is screwed to make one end of the second tightening screw abut against the sliding part to achieve position locking of the guide sleeve and the second support plate on the sliding part, and the left end surface of the third support plate and the right end surface of the main shaft body limit the sliding position of the guide sleeve.

[0034] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims of this patent, they should all fall within the protection scope of the utility model.

Claims

1. An impeller welding fixture, characterized by: The invention comprises a frame (1), wherein the frame (1) is rotatably connected to a positioning frame (3) via a rotating assembly (2), at least one positioning block (4) is provided on the left and right sides of the positioning frame (3), the positioning block (4) having a plug hole (41) arranged corresponding to a process hole (7) on an impeller, the impeller being detachably connected to the positioning block (4) via a plug pin (42) passing through the process hole (7) and plugged into the plug hole (41), each positioning block (4) being screwed with an adjustment pad (43) capable of supporting a wheel disc of an impeller connected to the positioning block (4), the positioning frame (3) being screwed with a plurality of tightening seats (5), the tightening seats (5) being screwed with a first tightening screw (51) capable of supporting an end disc of an impeller connected to the positioning block (4).

2. The impeller welding fixture according to claim 1 is characterized in that: The rotating assembly (2) comprises a wheel seat (21) connected to the frame (1); the wheel seat (21) is rotatably connected to two rollers (22); the two rollers (22) abut against a rotating shaft (23); one end of the rotating shaft (23) in the axial direction is connected to the positioning frame (3); the rotating assembly (2) comprises two parts in total and is symmetrically arranged on the left and right sides of the frame (1).

3. The impeller welding fixture according to claim 2 is characterized in that: The frame (1) comprises a base (11) and two upright supports (12) respectively located on the left and right sides of the base (11); the two rotating components (2) are respectively arranged on the two upright supports (12); the rotating shaft (23) is provided with a protrusion (231) having a diameter greater than the outer diameter of the rotating shaft (23); the rotating shaft (23) abuts against the rear of the two rollers (22) and the bottom of the protrusion (231) is located below the top of the upright support (12).

4. The impeller welding fixture according to claim 2 is characterized in that: The positioning frame (3) comprises a first support plate (31) located on the left side of the frame (1) and a second support plate (32) and a third support plate (33) located on the right side of the frame (1); the positioning block (4) is arranged on the first support plate (31) and the second support plate (32); the first support plate (31) is connected to a rotating shaft (23) located on the left side of the frame (1); the second support plate (32) is connected to a rotating shaft (23) located on the right side of the frame (1); the first support plate (31), the second support plate (32) and the third support plate (33) are detachably connected via at least two connecting shafts (34); and the distance between the second support plate (32) and the first support plate (31) can be adjusted.

5. The impeller welding fixture according to claim 4 is characterized in that: The connecting shaft (34) comprises a main shaft body (341), a first insertion portion (342) for being inserted into a first support plate (31) is provided on the left side of the main shaft body (341), a first threaded portion (343) is provided on the left side of the first insertion portion (342), an outer diameter of the first threaded portion (343) is smaller than an outer diameter of the first insertion portion (342), an outer diameter of the first insertion portion (342) is smaller than an outer diameter of the main shaft body (341), a first nut capable of abutting against a left end surface of a first support plate (31) inserted into the first insertion portion (342) is threadedly connected to the first threaded portion (343), the length of the first insertion portion (342) is adapted to the thickness of the first support plate (31), a sliding portion (344) is provided on the right side of the main shaft body (341), an outer diameter of the sliding portion (344) is smaller than an outer diameter of the main shaft body (341), The second support plate (32) is provided with a guide sleeve (6) slidably connected to the sliding portion (344); the guide sleeve (6) is threadedly connected with a second tightening screw (61) having one end capable of abutting against the sliding portion (344); a second insertion portion (345) for being plugged into the third support plate (33) is provided on the right side of the sliding portion (344); the outer diameter of the second insertion portion (345) is smaller than the outer diameter of the sliding portion (344); the length of the second insertion portion (345) is adapted to the thickness of the third support plate (33); a second threaded portion (346) is provided on the right side of the second insertion portion (345); the outer diameter of the second threaded portion (346) is smaller than the outer diameter of the second insertion portion (345); the second threaded portion (346) is threadedly connected with a second nut capable of abutting against the right end surface of the third support plate (33) plugged into the second insertion portion (345).

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